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Stunt woman Zoë Bell injured her back while working on this film, but didn't mention it, for fear of being replaced.
When Chiaki Kuriyama (Gogo) was shooting the scene where she flings her ball and chain out, she accidentally hit Quentin Tarantino on the head as he stood by the camera.
The shot where the Bride splits a baseball in two with a samurai sword was done for real on the set. It was done by Zoë Bell, Uma Thurman's stunt double.
Quentin Tarantino originally intended to cast a Japanese actress to play O-Ren Ishii, but before casting began he saw Lucy Liu's work in Shanghai Noon (2000) and immediately changed O-Ren into a Chinese-Japanese-American so that Liu could play the part.
The Bride's yellow outfit was inspired by the outfit worn by Bruce Lee in his final film, Game of Death (1978).
According to Quentin Tarantino and Uma Thurman in the DVD documentary, the idea for doing "Kill Bill" began during the filming of Pulp Fiction (1994). The two began talking about the kinds of movies that they would like to do, and Quentin said he would like to do a 70's style kung-fu flick. Uma came up with the film's opening shot of her beaten up and wearing a wedding gown.
Quentin Tarantino: When The Bride stands over the remains of the Crazy 88s, a masked Quentin Tarantino is among them.
Quentin Tarantino: [Trunk Shot] While The Bride is interrogating Sofie Fatale, we see from Sofie's point of view inside the trunk of her own car looking up at the masked Bride.